Glandular epithelium is a special type of epithelium that makes up glands in the body. Glands can be single cells or groups of cells that secrete enzymes, hormones, fats, or mucus. Their secretions are required by other tissues. There are two main types of glands: exocrine glands, which have duct systems and release secretions internally or externally; and endocrine glands, which are ductless and release hormones internally. Glands can be classified according to their presence or absence of ducts, number of secretory cells, nature of secretions, mode of secretion, and shape and arrangement of ducts.

1. Glandular Epithelium
Prepared by : Saleh Abduraboh

2. Glandular Epithelium
• Is a special type of epithelium makes up the
glands in body.
• Single or Group of cells.
• Secrets enzymes, hormones, fats or mucous.
• Its secretions are required by other tissue.

3. The formation of glands

4. Endocrine glands
• Ductless (no duct system).
• Release internally.
• Secret hormones.
• Multicellular with exception Paracrine glands.

5. Endocrine glands

6. Exocrine glands
• Have duct system.
• Release internally or externally.
• Secret ear-wax, digestive enzymes
and saliva.
• Multicellular or unicellular.

7. Exocrine glands secretions
watery waxy fatty cellular serous mucous mixed
sweat Gl Oil Gl Salivary glands
External ear Ovary & testis

8. Glandular classification
According to :
• Presence and absence of ducts.
• Number of secretory cells.
• Nature of secretion.
• Mode of secretion.
• Shape of secretory units & Arrangement of
Duct (branching in exocrine structure).

9. 1. Presence and absence of ducts

10. Salivary gland (Exocrine)

11. Thyroid gland (Endocrine)

12. Pancreas gland (Mixed)

13. 2. Number of secretory cells

14. First: Unicellular
Exocrine (ex: Goblet cells)

15. First: Unicellular
Endocrine (ex: Enteroendocrine cells)

16. Second: Multicellular
Exocrine (ex: Endometrial glands)

17. Second: Multicellular
Endocrine (ex: Thyroid gland)

18. 3. Nature of secretion

19. 4. Mode of secretion

20. 5. Shape of secretory units &
Arrangement of Duct

21. Gland as a compact organ

24. Thank you for
being attentive

25. Presented by group B students :
NameNo.
Saleh Abduraboh14
Moath Abdulkariem15
Omnia Mohammed16
Mohammed Sofian17